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Catalogue of the Batrachia Salientia in the Collection of the British Museum
British Museum (Natural History). Department of Zoology and Albert Carl Ludwig Gotthilf Günther
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United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Labor, Health and Human Services, Education, and Related Agencies
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Velazquez in the Collection of the Hispanic Society of America
Hispanic Society of America
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